Unlock instant, AI-driven research and patent intelligence for your innovation.

Actuator device with internal piping and anti-rotation mechanism

An actuator device and actuator technology, applied in the direction of valve operation/release device, device for pressure relief on the sealing surface, valve device, etc. , damage to the valve seat surface actuator components and other issues

Active Publication Date: 2019-07-19
FISHER CONTROLS INT LLC
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These torsional loads can damage the seating surfaces and / or internal actuator components, affecting the accuracy of the actuator and thus the desired fluid flow through the valve

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Actuator device with internal piping and anti-rotation mechanism
  • Actuator device with internal piping and anti-rotation mechanism
  • Actuator device with internal piping and anti-rotation mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The exemplary actuator arrangement disclosed herein eliminates the need for external piping, which is used to supply control fluid (e.g., through a controller or positioner) for both direct-acting and reverse-acting actuator configurations. A chamber (eg, pressure chamber) fluidly coupled to the fluid valve actuator. Additionally, the exemplary actuator devices disclosed herein include anti-rotation devices to prevent rotation of the valve stem relative to the valve. Additionally, the exemplary devices disclosed herein provide a vent through a yoke coupled to the actuator.

[0027] Valve actuators are generally available in direct acting and reverse acting configurations. In a direct acting configuration, increasing pressure of a control fluid (eg, air) supplied to the actuator pushes the diaphragm downward, thereby extending the actuator stem. In a reverse acting configuration, increasing pressure of control fluid supplied to the actuator pushes the diaphragm upwards...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A fluid valve actuator device having internal conduits and anti-rotation features is disclosed. An exemplary actuator arrangement includes an actuator housing and a diaphragm plate disposed within the actuator housing. The diaphragm plate defines a first pressure chamber and a second pressure chamber opposite the first pressure chamber. The yoke couples the actuator housing to the fluid valve. The yoke includes a first internal fluid passage in fluid communication with the atmosphere and a second internal fluid passage that receives control fluid from the controller. A tube fluidly couples the first or second internal fluid passage to the first pressure chamber through the opening in the diaphragm plate. The tube also prevents rotation of the diaphragm plate relative to the actuator housing.

Description

technical field [0001] The present invention relates generally to actuators and, more particularly, to actuators having internal conduits and anti-rotation features. Background technique [0002] Fluid control valves are commonly used in process control systems to control the flow of process fluids. Fluid control valve assemblies typically include an actuator that is operatively coupled to a flow control element (eg, valve, plug, closure element, etc.) of the fluid valve. The actuator controls the position of the flow control member relative to the valve seat to control or regulate fluid flow through the valve. [0003] In operation, a controller (e.g., a positioner) is typically used to provide a control fluid (e.g., air) to a chamber of an actuator to move a loading device (e.g., a diaphragm), which in turn controls the flow The position of the control element. In some examples, a yoke is used to couple the actuator to the fluid valve. Additionally, in some cases, the ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/126
CPCF16K31/1262F16K31/1264F16K27/08F16K31/126F16K31/163F16K39/00F16K31/1226
Inventor D·A·阿诺德D·M·亚当斯
Owner FISHER CONTROLS INT LLC